correlations - rsi to price.mq5

#property indicator_separate_window
#property indicator_buffers  1
#property indicator_color1   DeepSkyBlue
#property indicator_width1   2
#property indicator_maximum  1.1
#property indicator_minimum -1.1
#property indicator_level1   0
#property indicator_levelcolor DimGray

extern int  CorrelationPeriod    = 14;
extern int  RsiPeriod            = 14;
extern int  RsiPrice             = PRICE_CLOSE;
extern int  Price                = PRICE_CLOSE;
extern int  PriceSmoothPeriod    =  0;
extern int  PriceSmoothPhase     =  0;
extern int  PosCorrSmoothPeriod  =  0;
extern int  PosCorrSmoothPhase   =  0;

double corr[];
double rsi[];
double price[];

int init()
{
      // код доступен только после оплаты
   }

int start()
{
      // код доступен только после оплаты
   }

double iCorrelation(double& first[], double& second[], int length, int i)
{
   double sx  = 0;
   double sy  = 0;
   double sxy = 0;
   double sx2 = 0;
   double sy2 = 0;

   for (int k=0; k<length; k++)
   {
      double pricea = first[i+k];
      double priceb = second[i+k];
         sx += pricea; sx2 += pricea*pricea;
         sy += priceb; sy2 += priceb*priceb;
                       sxy += pricea*priceb;
   }

   double result  = 0;
   double divisor = MathSqrt(((sx2-(sx*sx)/length)*(sy2-(sy*sy)/length)));
      if (divisor != 0)
               result = (sxy - (sx*sy)/length)/divisor;
   return(result);
}

double wrk[][30];

#define bsmax  5
#define bsmin  6
#define volty  7
#define vsum   8
#define avolty 9

double iSmooth(double price, double length, double phase, int i, int s)

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